| 释义 |
permutant Math.|pəˈmjuːtənt|
[ad. L. permūtānt-em, pr. pple. of permūtāre: see permute and -ant1.]
A function formed of the aggregate of all possible permutations of a set of characters or indices, each being positive or negative as it is obtained by an even or odd number of interchanges.
1851Cayley Coll. Math. Papers II. 26 The term permutant is due to him [J. J. Sylvester]—intermutant and commutant are merely terms framed between us in analogy with permutant, and the names date from the present year. |